FR1370980A - Improvements to piezoelectric transducers - Google Patents

Improvements to piezoelectric transducers

Info

Publication number
FR1370980A
FR1370980A FR948137A FR948137A FR1370980A FR 1370980 A FR1370980 A FR 1370980A FR 948137 A FR948137 A FR 948137A FR 948137 A FR948137 A FR 948137A FR 1370980 A FR1370980 A FR 1370980A
Authority
FR
France
Prior art keywords
piezoelectric transducers
transducers
piezoelectric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR948137A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brown Ltd S G
SG Brown Ltd
Original Assignee
Brown Ltd S G
SG Brown Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB4505262A external-priority patent/GB1006726A/en
Application filed by Brown Ltd S G, SG Brown Ltd filed Critical Brown Ltd S G
Priority to FR948137A priority Critical patent/FR1370980A/en
Application granted granted Critical
Publication of FR1370980A publication Critical patent/FR1370980A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
FR948137A 1962-11-28 1963-09-20 Improvements to piezoelectric transducers Expired FR1370980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR948137A FR1370980A (en) 1962-11-28 1963-09-20 Improvements to piezoelectric transducers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4505262A GB1006726A (en) 1962-11-28 1962-11-28 Improvements in or relating to piezo-electric transducers
FR948137A FR1370980A (en) 1962-11-28 1963-09-20 Improvements to piezoelectric transducers

Publications (1)

Publication Number Publication Date
FR1370980A true FR1370980A (en) 1964-08-28

Family

ID=26203482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR948137A Expired FR1370980A (en) 1962-11-28 1963-09-20 Improvements to piezoelectric transducers

Country Status (1)

Country Link
FR (1) FR1370980A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2233784A1 (en) * 1973-06-12 1975-01-10 Philips Nv

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2233784A1 (en) * 1973-06-12 1975-01-10 Philips Nv

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